Implement staged deployment runtime

This commit is contained in:
Oskar Kapala 2026-05-11 21:04:24 +02:00
parent 0fa4df4ee1
commit 5947ddd03d
3 changed files with 295 additions and 64 deletions

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@ -16,17 +16,24 @@ The homelab uses a staged deployment framework located at `scripts/deploy/deploy
### Deployment Stages ### Deployment Stages
1. **prepare**: Pulls the latest changes from Git, validates inventory, and prepares the local environment. 1. **prepare**: Pulls the latest changes from Git, validates inventory, and prepares the local environment. It is tolerant of network failures to support intermittently connected nodes like CHELSTY.
2. **deploy**: Executes `docker compose` commands for all assigned services. 2. **validate**: Ensures all required service definitions and metadata are present.
3. **verify**: Checks the health and connectivity of deployed services. 3. **deploy**: Executes `docker compose` commands for all assigned services. Supports `.env` files and `docker-compose.override.yml` under `/opt/homelab/config/<service>/`.
4. **diagnose**: Performs deep checks and resource analysis if something goes wrong. 4. **verify**: Executes service-specific `healthcheck.sh` scripts or checks container status.
5. **rollback**: Reverts to a previous known-good state. 5. **diagnose**: Automatically triggered on failure; collects container status and logs for troubleshooting.
6. **resume**: Automatically continues from the last successful stage. 6. **complete**: Finalizes the deployment and marks the state as finished.
### State Tracking and Logging ### State Tracking and Logging
- **State**: Local node state is tracked in `/opt/homelab/state/deploy/current_stage`. - **State**: Local node state is tracked in `/opt/homelab/state/deploy/current_stage`. The last successfully processed service in the `deploy` stage is tracked in `last_service` to support granular resumption.
- **Logs**: Detailed execution logs are stored in `/opt/homelab/logs/deploy/deploy_<timestamp>.log`. - **Logs**: Detailed execution logs are stored in `/opt/homelab/logs/deploy/deploy_<timestamp>.log`. Structured log entries prefixed with `[STRUCT]` provide machine-parseable event data.
### Resume Semantics
If a deployment is interrupted (e.g., due to LTE disconnect on CHELSTY):
1. Rerun the script with the `--resume` flag: `scripts/deploy/deploy.sh --resume`.
2. The script reads the last incomplete stage and continues from there.
3. In the `deploy` stage, it specifically resumes from the first service that was not successfully completed.
### Operational Semantics ### Operational Semantics
@ -38,9 +45,9 @@ Deployment is **hybrid**:
### Recovery Workflow ### Recovery Workflow
If a deployment fails: If a deployment fails:
1. Run `deploy.sh diagnose` to identify the issue. 1. Run `deploy.sh --stage diagnose` to identify the issue.
2. Use the `recover-node` AI prompt to analyze logs and get recommendations. 2. Use the `recover-node` AI prompt to analyze logs and get recommendations.
3. Either fix the issue and run `deploy.sh resume`, or use `deploy.sh rollback`. 3. Fix the issue (e.g., update a secret in `.env`) and run `deploy.sh --resume`.
## Onboarding New Nodes ## Onboarding New Nodes

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@ -13,11 +13,11 @@ This document defines the lifecycle of a service in the homelab and the procedur
- Ensure `/opt/homelab/config/<service>` exists and contains required secrets/configs. - Ensure `/opt/homelab/config/<service>` exists and contains required secrets/configs.
- Setup environment variables from `env.example` into `/opt/homelab/config/<service>/.env`. - Setup environment variables from `env.example` into `/opt/homelab/config/<service>/.env`.
3. **Deployment**: 3. **Deployment**:
- `docker compose pull` - `scripts/deploy/deploy.sh prepare`
- `docker compose up -d` - `scripts/deploy/deploy.sh deploy`
4. **Verification**: 4. **Verification**:
- Run `healthcheck.sh`. - `scripts/deploy/deploy.sh verify`
- Verify ports are reachable according to `service.yaml`. - Healthchecks are automated within the verify stage.
5. **Maintenance**: 5. **Maintenance**:
- Periodic updates via `docker compose pull`. - Periodic updates via `docker compose pull`.
- Log monitoring via `docker compose logs -f`. - Log monitoring via `docker compose logs -f`.

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@ -1,8 +1,7 @@
#!/usr/bin/env bash #!/usr/bin/env bash
# deploy.sh - Staged deployment framework for homelab nodes. # deploy.sh - Staged deployment framework for homelab nodes.
# Usage: ./deploy.sh [stage]
set -e set -o pipefail
# --- Configuration --- # --- Configuration ---
RUNTIME_PATH="/opt/homelab" RUNTIME_PATH="/opt/homelab"
@ -18,13 +17,28 @@ mkdir -p "$STATE_DIR" "$LOG_DIR"
# Redirection for logging # Redirection for logging
exec > >(tee -a "$LOG_FILE") 2>&1 exec > >(tee -a "$LOG_FILE") 2>&1
# --- Helpers ---
log() { log() {
echo "[$(date +'%Y-%m-%d %H:%M:%S')] $1" local level=$1
shift
local message=$*
echo "[$(date +'%Y-%m-%d %H:%M:%S')] [$level] $message"
}
# Structured log for machine reading
# timestamp, stage, host, service, command_result, retry_info
struct_log() {
local stage=$1
local host=$2
local service=$3
local result=$4
local info=$5
log "STRUCT" "stage=$stage host=$host service=$service result=$result info=\"$info\""
} }
set_state() { set_state() {
echo "$1" > "${STATE_DIR}/current_stage" echo "$1" > "${STATE_DIR}/current_stage"
log "State set to: $1"
} }
get_state() { get_state() {
@ -35,76 +49,286 @@ get_state() {
fi fi
} }
set_last_service() {
echo "$1" > "${STATE_DIR}/last_service"
}
get_last_service() {
if [ -f "${STATE_DIR}/last_service" ]; then
cat "${STATE_DIR}/last_service"
else
echo ""
fi
}
# --- CLI Parsing ---
TARGET_HOST=$(hostname)
TARGET_SERVICE=""
RESUME=false
REQUESTED_STAGE=""
while [[ $# -gt 0 ]]; do
case $1 in
--host)
TARGET_HOST="$2"
shift 2
;;
--service)
TARGET_SERVICE="$2"
shift 2
;;
--resume)
RESUME=true
shift
;;
--stage)
REQUESTED_STAGE="$2"
shift 2
;;
*)
if [[ "$1" =~ ^(prepare|validate|deploy|verify|diagnose|complete)$ ]]; then
REQUESTED_STAGE="$1"
fi
shift
;;
esac
done
# --- Inventory Loading ---
load_inventory() {
log "INFO" "Loading inventory for host: $TARGET_HOST"
if [[ ! -d "${REPO_PATH}/hosts/${TARGET_HOST}" ]]; then
log "ERROR" "Host directory not found: ${REPO_PATH}/hosts/${TARGET_HOST}"
exit 1
fi
if [[ -n "$TARGET_SERVICE" ]]; then
SERVICES=("$TARGET_SERVICE")
else
if [[ -f "${REPO_PATH}/hosts/${TARGET_HOST}/services.txt" ]]; then
SERVICES=($(cat "${REPO_PATH}/hosts/${TARGET_HOST}/services.txt"))
elif [[ -f "${REPO_PATH}/hosts/${TARGET_HOST}/services.yaml" ]]; then
SERVICES=($(grep -A 100 "services:" "${REPO_PATH}/hosts/${TARGET_HOST}/services.yaml" | grep "^ [a-z0-9_-]\+:" | sed 's/ \(.*\):/\1/'))
else
log "WARN" "No services found for $TARGET_HOST"
SERVICES=()
fi
fi
log "INFO" "Services to process: ${SERVICES[*]}"
}
# --- Stages --- # --- Stages ---
stage_prepare() { stage_prepare() {
log "Stage: PREPARE" local host=$1
log "INFO" "Stage: PREPARE ($host)"
set_state "prepare" set_state "prepare"
# Skeleton: Pull latest changes, check dependencies, validate inventory
log "Checking repository at $REPO_PATH..." cd "$REPO_PATH" || exit 1
cd "$REPO_PATH" && git pull log "INFO" "Pulling latest changes..."
log "Preparation complete." if ! git pull; then
log "WARN" "Git pull failed, proceeding with local state (offline mode or network flap)"
fi
mkdir -p "${RUNTIME_PATH}/config" "${RUNTIME_PATH}/data" "${RUNTIME_PATH}/state" "${RUNTIME_PATH}/logs"
struct_log "prepare" "$host" "all" "success" "repo_updated"
}
stage_validate() {
local host=$1
log "INFO" "Stage: VALIDATE ($host)"
set_state "validate"
for service in "${SERVICES[@]}"; do
log "INFO" "Validating $service..."
if [[ ! -d "${REPO_PATH}/services/$service" ]]; then
log "ERROR" "Service definition not found: $service"
struct_log "validate" "$host" "$service" "fail" "not_found"
return 1
fi
done
struct_log "validate" "$host" "all" "success" "validated"
} }
stage_deploy() { stage_deploy() {
log "Stage: DEPLOY" local host=$1
log "INFO" "Stage: DEPLOY ($host)"
set_state "deploy" set_state "deploy"
# Skeleton: Iterate through services and run docker compose
log "Deploying services defined for $(hostname)..." local last_s=$(get_last_service)
# Implementation detail: loop through services/ and run compose local skip=false
log "Deployment complete." if [[ "$RESUME" == "true" && -n "$last_s" ]]; then
skip=true
fi
for service in "${SERVICES[@]}"; do
if [[ "$skip" == "true" ]]; then
if [[ "$service" == "$last_s" ]]; then
skip=false
log "INFO" "Resuming from $service..."
else
log "INFO" "Skipping $service (already processed)"
continue
fi
fi
log "INFO" "Deploying $service..."
set_last_service "$service"
local svc_dir="${REPO_PATH}/services/$service"
local runtime_config_dir="${RUNTIME_PATH}/config/$service"
mkdir -p "$runtime_config_dir"
local compose_args=("-f" "${svc_dir}/docker-compose.yml")
if [[ -f "${runtime_config_dir}/docker-compose.override.yml" ]]; then
log "INFO" "Using override for $service"
compose_args+=("-f" "${runtime_config_dir}/docker-compose.override.yml")
fi
# Determine .env
local env_file=""
if [[ -f "${runtime_config_dir}/.env" ]]; then
env_file="${runtime_config_dir}/.env"
elif [[ -f "${svc_dir}/.env" ]]; then
env_file="${svc_dir}/.env"
fi
local run_cmd=("docker" "compose")
run_cmd+=("${compose_args[@]}")
if [[ -n "$env_file" ]]; then
run_cmd+=("--env-file" "$env_file")
fi
run_cmd+=("up" "-d" "--remove-orphans")
log "INFO" "Running: ${run_cmd[*]}"
if ! "${run_cmd[@]}"; then
log "ERROR" "Failed to deploy $service"
struct_log "deploy" "$host" "$service" "fail" "docker_compose_failed"
stage_diagnose "$host" "$service"
return 1
fi
struct_log "deploy" "$host" "$service" "success" "deployed"
done
set_last_service ""
} }
stage_verify() { stage_verify() {
log "Stage: VERIFY" local host=$1
log "INFO" "Stage: VERIFY ($host)"
set_state "verify" set_state "verify"
# Skeleton: Check container status, healthchecks, connectivity
log "Verifying service health..." for service in "${SERVICES[@]}"; do
docker ps log "INFO" "Verifying $service..."
log "Verification complete." local health_script="${REPO_PATH}/services/${service}/healthcheck.sh"
if [[ -f "$health_script" ]]; then
if ! bash "$health_script"; then
log "ERROR" "Healthcheck failed for $service"
struct_log "verify" "$host" "$service" "fail" "healthcheck_failed"
stage_diagnose "$host" "$service"
return 1
fi
else
if ! docker ps --filter "name=$service" --filter "status=running" | grep -q "$service"; then
log "ERROR" "Container $service is not running"
struct_log "verify" "$host" "$service" "fail" "container_not_running"
stage_diagnose "$host" "$service"
return 1
fi
fi
struct_log "verify" "$host" "$service" "success" "verified"
done
} }
stage_diagnose() { stage_diagnose() {
log "Stage: DIAGNOSE" local host=$1
# Skeleton: Check logs, resource usage, networking local service=$2
log "Running diagnostics..." log "INFO" "Stage: DIAGNOSE ($host - ${service:-all})"
docker stats --no-stream
log "Diagnostics complete." echo "--- DIAGNOSTICS FOR ${service:-all} ---"
docker ps --filter "name=${service:-}"
if [[ -n "$service" ]]; then
local svc_dir="${REPO_PATH}/services/$service"
if [[ -d "$svc_dir" ]]; then
cd "$svc_dir" || exit 1
docker compose ps
docker compose logs --tail=50
fi
fi
echo "--- END DIAGNOSTICS ---"
struct_log "diagnose" "$host" "${service:-all}" "done" "diagnostics_collected"
} }
stage_rollback() { stage_complete() {
log "Stage: ROLLBACK" local host=$1
# Skeleton: Revert to previous git commit or previous state log "INFO" "Stage: COMPLETE ($host)"
log "Rolling back changes..." set_state "complete"
log "Rollback complete." struct_log "complete" "$host" "all" "success" "deployment_finished"
} }
stage_resume() { # --- Execution Logic ---
log "Stage: RESUME"
CURRENT=$(get_state) run_deployment() {
log "Resuming from state: $CURRENT" local start_stage=$1
case "$CURRENT" in
"prepare") stage_deploy ;; case "$start_stage" in
"deploy") stage_verify ;; prepare)
"verify") log "Last deployment was verified. Nothing to resume." ;; stage_prepare "$TARGET_HOST" || return 1
*) log "Unknown state or nothing to resume. Starting from prepare..."; stage_prepare ;; ;&
validate)
stage_validate "$TARGET_HOST" || return 1
;&
deploy)
stage_deploy "$TARGET_HOST" || return 1
;&
verify)
stage_verify "$TARGET_HOST" || return 1
;&
complete)
stage_complete "$TARGET_HOST" || return 1
;;
*)
log "ERROR" "Invalid stage: $start_stage"
return 1
;;
esac esac
} }
# --- Main --- # --- Main ---
COMMAND=${1:-resume} log "INFO" "--- Homelab Deployment Started (Host: $TARGET_HOST, Service: ${TARGET_SERVICE:-all}) ---"
log "--- Homelab Deployment Started (Command: $COMMAND) ---" load_inventory
case "$COMMAND" in if [[ "$RESUME" == "true" ]]; then
prepare) stage_prepare ;; CURRENT=$(get_state)
deploy) stage_deploy ;; log "INFO" "Resuming from state: $CURRENT"
verify) stage_verify ;; case "$CURRENT" in
diagnose) stage_diagnose ;; prepare|validate|deploy|verify)
rollback) stage_rollback ;; run_deployment "$CURRENT"
resume) stage_resume ;; ;;
*) echo "Usage: $0 {prepare|deploy|verify|diagnose|rollback|resume}"; exit 1 ;; complete)
esac log "INFO" "Last deployment was complete. Nothing to resume."
;;
*)
log "INFO" "No valid state to resume. Starting from prepare..."
run_deployment "prepare"
;;
esac
elif [[ -n "$REQUESTED_STAGE" ]]; then
if [[ "$REQUESTED_STAGE" == "diagnose" ]]; then
stage_diagnose "$TARGET_HOST" "$TARGET_SERVICE"
else
run_deployment "$REQUESTED_STAGE"
fi
else
run_deployment "prepare"
fi
log "--- Homelab Deployment Finished ---" log "INFO" "--- Homelab Deployment Finished ---"